Wikipedia Rabbit Hole

It's not just a hole. It's a rabbit hole, akin to the one Alice fell down to Wonderland.

I enjoy falling down Wikipedia rabbit holes because I never know where I may end up.

'Wikipedia rabbit hole'

A topical progression that leads into infinite topical regress which begins with an inquiry into factual content about one specific topic that leads into factual content about multiple related sub-topics, sub-sub-topics, and ad infinitum sub-sub-topics.

"I googled 'Roald Amundsen' and knew I'd gone down a 'Wikipedia rabbit hole' when I ended up reading the lyrics to the 'Star Spangled Banner'."